Software Engineer/Developer - Contingent

Public Trust Eligibility Required This is a contingent position, meaning employment is dependent upon the successful award of the associated contract to Aretum and completion of any required background investigation or security clearance verification. About Aretum Aretum is a mission-driven organization committed to delivering innovative, technology-enabled solutions to our customers across defense, civilian, and homeland security sectors. Our teams work at the intersection of strategy, technology, and transformation, helping agencies solve their most critical challenges. We believe in investing in our people and creating a culture where collaboration, inclusion, and professional growth are at the forefront. Job Summary Aretum is seeking a Software Engineer/Developer to join an Agile scrum team supporting a large-scale federal digital content management and systems integration program. This role is primarily backend engineering, with a secondary front-end component. Python is the primary development language on the program, and most of your work will involve building Python and Django services, REST APIs, and data transformation routines that acquire, process, validate, and exchange digital content (images, video, audio, and textual materials) and its associated metadata between major enterprise systems. Portions of the existing platform are implemented in Java, so working Java proficiency is required, though the majority of new development is expected to be in Python. You will also build and maintain accessible user-facing features in TypeScript and React for the workflow and administrative interfaces the team delivers. Working under the direction of the team's technical lead and alongside government developers, testers, and user experience staff, you will own well-defined stories end to end, from design through unit-tested, production-ready code. Due to the nature of our work as a federal consulting organization, employees may be expected to handle Controlled Unclassified Information (CUI) and must adhere to applicable safeguarding and compliance requirements. Responsibilities - Design, develop, and unit test Python and Django backend services and REST APIs as a member of a scrum team working on a three-week sprint cadence, integrated with government developers, testers, and stakeholders. - Build data transformation and ETL routines that move content and metadata between integrated enterprise systems, including mapping, normalization, validation, and reconciliation handling. - Implement content identification and selection functions, including filtering logic, classification rules, business-rule-driven selection, and manual, scheduled, and event-driven triggers. - Implement API integration and content transfer features, including authentication and authorization, secure transport, retry and error-handling logic, and transaction logging for end-to-end traceability. - Develop against relational data models in PostgreSQL, writing and tuning queries and contributing to schema design and migrations for content registries, workflow state, and audit history. - Implement background and asynchronous processing for long-running or batched content operations, including queueing, retries, and status tracking. - Maintain and extend existing Java components where the platform requires it, following the team's established coding standards. - Integrate existing malware scanning, integrity validation, and routing utility services into content exchange workflows through their documented APIs. - Build backend support for workflow administration features, including work queues, role-based permissions, exception handling paths, and audit logging. - Implement and maintain search features using Solr and Elasticsearch, including indexing and query development. - Develop accessible, responsive user-facing features using TypeScript, React, JavaScript, HTML5, and CSS3 for workflow and administrative interfaces, conforming t